Black technology: I have a refitting factory

Chapter 45 The Wing of the Magic Modified Supercritical Airfoil

Jiangfeng City, the [-]th Research Institute of China Southern Airlines.

an office.

"Xiao Yu, how is the reception of experts going?"

A man in a polo shirt asked. He was leaning on a chair, holding a transparent glass with tea and goji berry in his hand.Approximately in his 40s.

He is Zhao Liming, director of the office of China Southern Airlines Research Institute.

The person he spoke to was a man in his 30s named Yu Wei, an office correspondent.

"The itinerary has been arranged."

Yu Wei nodded, then seemed to remember something, and asked cautiously, "Director Zhao, why are there so many experts suddenly coming to our office this time?"

"It is said that Jiang Fei has made a big breakthrough in materials and can produce new aircraft engines. The big guys are anxious and want to come over and take a look at the situation.

In addition, jet engines have new developments.Our research on propellers should have some results. Another thing for the big guys to come here is to exchange the latest results, broaden their thinking, and discuss.

None of this has much to do with you or me. What we have to do is to ensure the logistics and not lose the chain! "

Zhao Liming knocked on the table, took a sip from the water glass, and said, "By the way, how are the preparations at the air show?"

"The models have been selected, just like before, there are first generation, second generation, third generation, fourth generation and the latest ones, but..." Yu Ming paused when he said this and considered his words.
"There may be some minor problems with the first-generation aircraft. Hasn't that aircraft been retired? Then it was taken out for modification, and it is still in the process of modification.

But it should be refitted before the air show can be done. "

"I need to go down and confirm again to make sure I can fly when I get there. Don't have any problems."

Zhao Liming said.

That's what he said, but not harshly.

This air show is just a little bit more.

The big expert from Kyoto is the highlight!

As for this first-generation aircraft, it is nothing more than a background board. It is not a matter of whether it can fly or not. Experts will not focus on the first-generation aircraft at all.

This plane is outdated and lags behind modern machines in every way.

Every time the air show is produced, it is just a remembrance, acting as a green leaf to set off the latest aircraft.

He didn't take the modification that Yu Ming said seriously.Generally, just change the paint, change the shape, at most change the wing, and there is no fundamental change to the whole aircraft.

Still acts as a perfect green leaf.

At that time, you can also brag about how good the aviation research environment in Jiangfeng City is, which can be regarded as a political achievement to some extent.

Zhao Liming picked up the water glass and took a sip. As if remembering something, he asked: "By the way, which university did you send it to for modification?"

"It's not a university, it's a modification factory..."

Yu Wei thought for a while and replied.

"These days, the refitting factory has spent so much time playing."

Zhao Liming was a little surprised, then smiled and shook his head, not caring anymore.

If it's a modification factory, then the most you can do is spray paint and refurbish it. If you can't even change the wings, what's the big problem?

It cannot be said that it is impossible to take it to a modification shop to modify the engine and change the core configuration!
Shaking these unrealistic thoughts out of his head, he then warned, "Confirm the expert's itinerary again to make sure there is no problem!"

"it is good!"

……

Another four days passed in a blink of an eye.

"The engine is finally done!"

Su Qi looked at the second engine in front of him with a satisfied smile on his face.

With the foundation laid by the first engine, the modification speed of the second engine was much faster, and it took only four days to complete the modification.More importantly, the workmanship is a little more perfect than the first one.

A perfect craft.

After admiring it for a while, Su Qi looked at the wings.After the engine is refitted, the rest is the wing. A well-designed wing is also a key point for improving the performance of the aircraft.

Regarding wing design, he gained some knowledge after receiving financial modification requirements.

The solution given by the system is a modified supercritical airfoil wing.

The supercritical airfoil was originally an extremely advanced wing type. In other words, many aircraft on the market currently use supercritical airfoils, an airfoil with a wide range of applications.

This type of wing design features a relatively flat upper surface, but a concave design on the lower surface, and a larger, thinner curvature at the trailing edge of the wing.

This airfoil can reduce shock waves when the aircraft is flying at high speed!
What is the concept of reducing shock waves? Shock waves will cause the fuselage to vibrate and cause safety hazards. Fighting against shock waves during flight will further increase fuel consumption.

If the shock wave is reduced, the aircraft will fly more smoothly, at the same time, the speed can be one step faster, and the fuel consumption will be reduced!

However, the supercritical wing also has disadvantages. The rear part of the wing has a large curvature, which leads to an excessively high nose-down moment. Therefore, it is necessary to increase the tail load for trimming, which in turn leads to an increase in the required lift of the wing. As the lift increases, the drag increases sharply Mach The Mach number will be significantly reduced, thereby partially losing the benefit of the increase in the drag surge Mach number of the supercritical wing.

The magic modification plan given by the system does not have the above shortcomings.

In the pros section...

The amount of shock wave reduction is even higher by one-third!

This is a very high improvement, reducing it by one-third and improving performance by at least 10%!

This does not include the blessing of new materials for the wings!

The system proposes a brand-new material in the scheme, which can meet the flight requirements of the wing and at the same time reduce the weight of the wing by a quarter.

The whole is combined.

Even switching to the latest design of the aircraft can improve the performance by 20%, but for the old model that the money sent over, it is more than doubled!
"The stuff is good, and the shape is very good-looking. It has a high-tech aesthetic... But the modification work is quite a lot."

Su Qi sighed.

The plan given by the system uses new materials, which are not readily available at all, so they need to be smelted.

And the creation of a new airfoil is not a simple matter.

Various parts of the wing have particularly high precision requirements. If they are not met, performance may be affected.

Despite the assistance of a high-precision arm, this thing is still a very time-consuming and troublesome thing.

However, Su Qi just sighed and immediately started the modification process.

A brand-new wing, especially a wing full of futuristic aesthetics, making it is no less attractive to Su Qi than a naked beauty.

Maybe even stronger!
The hobby of a man in science and engineering is so simple and unpretentious!

But if two things are placed in front of Su Qi, if he makes a choice...

Ha ha!

Children only do multiple-choice questions, and adults naturally ask for all of them!
　Bendao Wuwei, tail number 0389, Huatianxiang, and tongxiang are four big monthly tickets, as well as everyone who voted for recommendations to follow up, thank you for your support!

　　
　
(End of this chapter)